Speaking of ratings (and finishing all discussions based on ridiculous notes about random numbers), I've just finished my BKR history generator and make the first test run (on my local computer, of course).
The results are very good, I think. Some differences between current values and recalculated ones can occur but nothing too drastic (+-50 points).
It will be launched when I am absolutely sure the generator is correct and when I finish a graph drawing engine.